"It gathers as much information as it could about us and spams every second of our life with ads, beep, notifications, vibrations, blinking LEDs, background music and fluorescent titles."

Plaintext SNI or TLS other than v1.3 is one way of gathering information, namely, a list of every domain the computer accesses.

TLS1.3 without SNI: https://web.archive.org/web/20230801115645if_/https://ploum....